# MaPhET vs Probability Calculator Plus

The clearest difference is update cadence: MaPhET at every 5 months against Probability Calculator Plus's every 23 months. MaPhET also leads on price ($1.99 vs $2.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

MaPhET costs $1.99 and Probability Calculator Plus $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MaPhET ships an update every 5 months, Probability Calculator Plus every 23 months. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | MaPhET | Probability Calculator Plus |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/probability-calculator-plus/id1625628315/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 23 months |
| Monetization | Paid | Paid |
| Size | 13 MB | 1 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jens-Peter Bardt](https://appshunter.io/developer/1571033573) | [Heng Jia Liang](https://appshunter.io/developer/1532000635) |

## What reviewers say

### MaPhET

[App page](https://appshunter.io/ios/app/maphet/id1602083319)

This app serves as a comprehensive educational tool, offering a powerful calculator with detailed calculation paths, unit conversions, and a vast collection of formulas for math, physics, and chemistry. It also includes tools for date calculations, random number generation, and geometric figure analysis.

**Highlights:** Advanced calculator with calculation path, Extensive unit conversions, Collection of math, physics, and chemistry formulas, Date difference calculation, Geometric figure analysis, Random number and letter generator

**Features:** Vision Pro support

**In-app purchases:** none


### Probability Calculator Plus

[App page](https://appshunter.io/ios/app/probability-calculator-plus/id1625628315)

Master probability and statistics with instant, step-by-step solutions for various calculations and distributions. Includes a random experiment simulator and a comprehensive reference guide.

**Highlights:** Basic and conditional probability calculations, Venn diagram calculator with visual representation, Statistical distributions (Binomial, Normal, Poisson), Random experiment simulator (dice, coins, cards), Step-by-step solutions for all calculations, Calculation history and reference guide

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MaPhET free?

MaPhET costs $1.99, with no in-app purchases.

### Is Probability Calculator Plus free?

Probability Calculator Plus costs $2.99, with no in-app purchases.

### Do MaPhET or Probability Calculator Plus have ads?

Neither MaPhET nor Probability Calculator Plus shows ads.

### Which is updated more often, MaPhET or Probability Calculator Plus?

MaPhET ships an update every 5 months, and Probability Calculator Plus every 23 months. Most recently, MaPhET was updated on September 18, 2026 and Probability Calculator Plus on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*